{
  "manageEntity": {
    "action": "Save",
    "entityId": "1614032666",
    "entityType": "Track",
    "nonce": "0x067b4b0cb9f0193b8024d5f7ec27ac74a0ac8902dcf89f600ee58b011e32c76b",
    "signature": "0xa2b8952ebfb271980da2c1093523fdfe347e372aeda82b786e64eea405618c71001df41a4ed6daac670474178c7585d4de360a696170e15ebcb616777ecc4a451c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}